Polymers that contain only a single type of repeat unit are known as homopolymers, while polymers containing a mixture of repeat units are known as copolymers. Poly(styrene), for example, is composed only of styrene monomer residues, and is therefore classified as a homopolymer.olymers that contain only a single type of repeat unit are known as homopolymers, while polymers containing a mixture of repeat units are known as copolymers. Poly(styrene), for example, is composed only of styrene monomer residues, and is therefore classified as a homopolymer.
This name, similar to Ryan and Rylan, has gained popularity of late. After reaching a new high in 2013, it settled back down 30 places last year. It's the full birth name of legendary musician Ry Cooder.his name, similar to Ryan and Rylan, has gained popularity of late. After reaching a new high in 2013, it settled back down 30 places last year. It's the full birth name of legendary musician Ry Cooder.
Popular yet delightful, the name is a great blend of character and flair. Alternate names include Alann, Alen, Allan, Allen, Allin, Allyn. Some famous bearers of this name include: Alan Alda, Alan Arkin, and Alan Carr. Alan Popularity In the U.S. in 2016, it ranked 154 in baby name popularity for boys with 2,626 occurrences.